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155112141 = 3411112577
BaseRepresentation
bin10010011111011…
…01001011001101
3101210212111212010
421033231023031
5304202042031
623220331433
73562300662
oct1117551315
9353774763
10155112141
117a614058
1243b43b79
132619ba42
1416859a69
15d93e246
hex93ed2cd

155112141 has 8 divisors (see below), whose sum is σ = 206882944. Its totient is φ = 103374720.

The previous prime is 155112119. The next prime is 155112157. The reversal of 155112141 is 141211551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 155112141 - 26 = 155112077 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155112241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6045 + ... + 18621.

It is an arithmetic number, because the mean of its divisors is an integer number (25860368).

Almost surely, 2155112141 is an apocalyptic number.

It is an amenable number.

155112141 is a deficient number, since it is larger than the sum of its proper divisors (51770803).

155112141 is a wasteful number, since it uses less digits than its factorization.

155112141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16691.

The product of its digits is 200, while the sum is 21.

The square root of 155112141 is about 12454.4024746272. The cubic root of 155112141 is about 537.2980496778.

Adding to 155112141 its reverse (141211551), we get a palindrome (296323692).

The spelling of 155112141 in words is "one hundred fifty-five million, one hundred twelve thousand, one hundred forty-one".

Divisors: 1 3 4111 12333 12577 37731 51704047 155112141